/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.ignite.internal.processors.query.calcite.exec.task;

import java.util.Objects;
import java.util.UUID;
import org.apache.ignite.internal.util.typedef.internal.S;
import org.apache.ignite.internal.util.typedef.internal.U;

/**
 * Query key.
 */
class QueryKey {
    /** */
    private final UUID qryId;

    /** */
    private final long fragmentId;

    /** */
    QueryKey(UUID qryId, long fragmentId) {
        this.qryId = qryId;
        this.fragmentId = fragmentId;
    }

    /** {@inheritDoc} */
    @Override public boolean equals(Object o) {
        if (this == o)
            return true;

        if (o == null || getClass() != o.getClass())
            return false;

        QueryKey key = (QueryKey)o;

        return fragmentId == key.fragmentId && Objects.equals(qryId, key.qryId);
    }

    /** {@inheritDoc} */
    @Override public int hashCode() {
        return U.safeAbs(31 * (31 + (qryId != null ? qryId.hashCode() : 0)) + Long.hashCode(fragmentId));
    }

    /** {@inheritDoc} */
    @Override public String toString() {
        return S.toString(QueryKey.class, this);
    }
}
